Triethylamine → {6-[4-(2-TRIFLUOROMETHYLBENZOYL)PIPERAZIN-1-YL]PYRIDAZIN-3-YL}CARBAMIC Acid Butyl Ester

HRID 2356473Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2356473
[NH2:1][C:2]1[N:7]=[N:6][C:5]([N:8]2[CH2:13][CH2:12][N:11]([C:14]([C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=3[C:22]([F:25])([F:24])[F:23])=[O:15])[CH2:10][CH2:9]2)=[CH:4][CH:3]=1.Cl[C:27]([O:29][CH2:30][CH2:31][CH2:32][CH3:33])=[O:28].C(N(CC)CC)C>ClCCl>[CH2:30]([O:29][C:27](=[O:28])[NH:1][C:2]1[N:7]=[N:6][C:5]([N:8]2[CH2:9][CH2:10][N:11]([C:14](=[O:15])[C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=3[C:22]([F:25])([F:24])[F:23])[CH2:12][CH2:13]2)=[CH:4][CH:3]=1)[CH2:31][CH2:32][CH3:33]

Komponenten

5

Edukt 3

HCID 8471TriethylamineHCID 61140Butyl chloroformateHCID 66849536[4-(6-Aminopyridazin-3-yl)piperazin-1-yl](2-trifluoromethylphenyl)methanone

Produkt 1

HCID 66849865{6-[4-(2-TRIFLUOROMETHYLBENZOYL)PIPERAZIN-1-YL]PYRIDAZIN-3-YL}CARBAMIC Acid Butyl EsterAusbeute 74 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a stirred solution of [4-(6-aminopyridazin-3-yl)piperazin-1-yl](2-trifluoromethyl-phenyl)methanone (100 mg, 0.285 mmol) in dichloromethane (5 mL) was added n-butyl chloroformate (0.285 mmol) in the presence of triethylamine (0.313 mmol) at 0° C. The resulting mixture was stirred at ambient temperature for 24 h and then quenched with water (10 mL). The organic phase was washed with water, saturated NaCl, dried over MgSO4 and then concentrated in vacuo to afford the desired product as a white solid (0.095 g, 74% yield). 1H NMR (500 MHz, CDCl3) δ 8.10, 7.73, 7.63, 7.55, 7.36, 7.04, 4.19, 3.96-4.02, 3.89-3.95, 3.61-3.66, 3.52-3.56, 3.32, 1.64-1.70, 1.38-1.46, 0.95.

Aufarbeitung

  1. customquenched with water (10 mL)
  2. washThe organic phase was washed with water, saturated NaCl
  3. dry with materialdried over MgSO4
  4. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-9a37008e2d6746f5bdf8dec9fd0839ca
Quelldatensatz
uspto-grants-2010_07
Patentnummer
US07759348B2

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